Space-X’s Falcon 9 rocket successfully launches with 10 satellites into orbit for Iridium Communications Inc., at Vandenberg Air Force Base, Calif., Saturday, Jan. 14, 2017. About nine minutes later, the first stage returned to Earth and landed successfully on a barge in the Pacific Ocean south of Vandenberg. The return to flight is an important step for SpaceX, a California-based company that has about 70 launches in line, worth more than $10 billion.

The two-stage rocket is scheduled to lift off from Vandenberg Air Force Base, California, on Saturday morning to place 10 satellites into orbit for Iridium Communications Inc.

SpaceX Falcon 9 rocket launch.

SpaceX officials believe they have identified all possible causes of the Sept. 1 accident and taken corrective action. The return to flight is an important step for SpaceX, a California-based company that has about 70 launches in line, worth more than $10 billion.